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Texas Instruments LMV614MTX/NOPB
- Part No.:
- LMV614MTX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMV614MTX/NOPB.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:10,946
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Product details
Overview
LMV614MTX/NOPB from Texas Instruments is a quad, rail-to-rail input/output, low-power operational amplifier optimized for 1.8-V to 5.5-V single-supply operation. It delivers 1.4-MHz gain-bandwidth, 100-µA per-channel quiescent current, and output swing within 30 mV of rails under 2-kΩ load - enabling precision signal conditioning in space-constrained battery-powered systems such as portable audio pre-amplifiers and supply current monitoring circuits.
For engineers reviewing the LMV614MTX/NOPB datasheet, LMV614MTX/NOPB pinout, LMV614MTX/NOPB application, or LMV614MTX/NOPB equivalent, key selection criteria include its guaranteed 1.8-V operation, −40°C to +125°C temperature range, 4-mV max input offset voltage, rail-to-rail input common-mode range extending 200 mV beyond supplies, and TSSOP-14 package compatibility with high-density PCB layouts.
Technical Context
The LMV614MTX/NOPB integrates four independent amplifiers on a single die with fully differential input stages supporting rail-to-rail common-mode input voltage (VCM = V− − 0.2 V to V+ + 0.2 V at 25°C) and rail-to-rail output swing (e.g., 1.75 V min / 1.77 V max at V+ = 1.8 V, RL = 2 kΩ). Its 1.4-MHz unity-gain bandwidth and 0.35 V/µs slew rate are stable with capacitive loads up to 100 pF.
Each channel draws only 100 µA typical supply current across 1.8–5.5 V supply range and maintains ≥50 dB CMRR over extended common-mode range. The device uses bipolar input transistors yielding 15 nA max input bias current and 60 nV/√Hz input voltage noise at 10 kHz - balancing low power with moderate precision for cost-sensitive industrial and consumer sensing front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - supports direct connection to Li-ion battery, 3.3-V logic, and 5-V legacy rails without level-shifting. |
| Gain-Bandwidth Product | 1.4 MHz - enables stable unity-gain buffer or gain-of-10 amplification up to ~140 kHz for sensor signal conditioning. |
| Quiescent Current per Channel | 100 µA typical - allows four-channel operation at <400 µA total, critical for multi-sensor nodes in always-on IoT devices. |
| Input Offset Voltage | Max 4 mV (LMV611), 5.5 mV (LMV612/LMV614) - ensures ≤5.5 mV DC error in 12-bit ADC front-ends with 2.048-V reference. |
| Rail-to-Rail Output Swing | Within 30 mV of rails at 2-kΩ load - preserves dynamic range in 1.8-V systems where headroom is limited to ~1.77 V. |
| Input Common-Mode Range | V− − 0.2 V to V+ + 0.2 V - accepts signals below ground or above supply, simplifying single-supply transducer interfacing. |
| Operating Temperature | −40°C to +125°C - qualified for automotive cabin modules, industrial motor controllers, and outdoor metering equipment. |
Pinout & Package
LMV614MTX/NOPB is packaged in a 14-pin TSSOP (PW package), body size 5.00 mm × 4.40 mm, with exposed pad for thermal enhancement. Pin numbering follows standard TI TSSOP orientation (pin 1 marked by dot).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load or next-stage input; rail-to-rail capable with 8 mA sourcing/sinking capability. |
| 2 | IN A− | Inverting input of Amp A - connects to feedback network or inverting configuration; high-impedance (15 nA bias current). |
| 3 | IN A+ | Noninverting input of Amp A - accepts sensor, reference, or signal source; common-mode range extends beyond rails. |
| 4 | V+ | Positive supply rail - shared by all four amplifiers; decoupling capacitor required within 1 cm for stability. |
| 5 | IN B+ | Noninverting input of Amp B - electrically isolated from other channels; enables independent dual-signal processing. |
| 6 | IN B− | Inverting input of Amp B - used for differential gain stages or active filters without crosstalk to Amp A/C/D. |
| 7 | OUT B | Amplifier B output - identical performance to OUT A; supports parallel drive or multi-path signal routing. |
| 8 | OUT C | Amplifier C output - provides third independent analog path; no internal connection to other outputs. |
| 9 | IN C− | Inverting input of Amp C - matches pinout symmetry for layout consistency across all four channels. |
| 10 | IN C+ | Noninverting input of Amp C - enables identical configuration as Amp A/B for modular design reuse. |
| 11 | V− | Negative supply rail - typically GND in single-supply systems; must be low-impedance return path for all channels. |
| 12 | IN D+ | Noninverting input of Amp D - completes quad-channel set; supports simultaneous 4-channel acquisition or control loops. |
| 13 | IN D− | Inverting input of Amp D - fully isolated; allows independent gain/offset adjustment per channel. |
| 14 | OUT D | Amplifier D output - final channel output; shares same electrical specs and thermal limits as other outputs. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 1.8-V supply range - accepts inputs down to −0.2 V and swings output to within 30 mV of V+ or V−. |
| 100-µA per-channel quiescent current | Supports always-on operation in battery-powered devices - four channels draw <400 µA total, extending runtime in coin-cell applications. |
| 1.4-MHz gain-bandwidth product | Provides sufficient bandwidth for anti-alias filtering, audio pre-amplification (up to 20 kHz), and fast sensor signal conditioning. |
| Guaranteed operation at 1.8 V | Eliminates need for voltage boosters in ultra-low-voltage systems - specified performance verified at minimum 1.8-V supply. |
| −40°C to +125°C operating range | Meets extended industrial and automotive under-hood requirements - no derating needed across full temperature span. |
| Low input offset voltage (max 5.5 mV) | Reduces DC error in precision gain stages - suitable for 12-bit data acquisition where 1 LSB = ~0.5 mV at 2.048-V reference. |
Applications
| Portable Audio Pre-Amplifier | Battery Supply Monitoring |
|---|---|
|
Use Scenario: Amplifying microphone or line-level signals in Bluetooth earbuds or voice-controlled remotes powered by single Li-ion cell. IC Role / Device Role / Timing Role: Quad op-amp configured as two differential mic pre-amps + one reference buffer + one AGC integrator. Use Value: Rail-to-rail I/O preserves 1.8-V dynamic range; 100-µA/channel current enables >100-hour playback on 100-mAh battery. |
Use Scenario: Measuring cell voltage, charge/discharge current, and temperature in smart battery packs for laptops or power tools. IC Role / Device Role / Timing Role: Four independent amps condition voltage divider output, sense resistor voltage, reference buffer, and comparator hysteresis generator. Use Value: Guaranteed 1.8-V operation interfaces directly with fuel gauge ICs; 4-mV VOS ensures ±0.5% voltage measurement accuracy. |
| Industrial Sensor Signal Conditioning | Consumer Equipment Power Management |
|
Use Scenario: Amplifying low-level outputs from RTDs, thermocouples, or bridge-based pressure sensors in HVAC controllers or factory automation nodes. IC Role / Device Role / Timing Role: Configured as instrumentation amp front-end (A+B), excitation buffer (C), and reference stabilizer (D). Use Value: Input common-mode range extending 200 mV beyond rails accommodates sensor offsets; 125°C rating supports enclosure mounting near motors. |
Use Scenario: Monitoring VCC rails, detecting overcurrent in USB-C PD ports, and generating enable signals for PMIC sequencing in tablets and docking stations. IC Role / Device Role / Timing Role: Quad amplifier implements rail monitor comparators, current-sense amplifier, soft-start integrator, and reset delay filter. Use Value: 1.4-MHz GBW ensures fast response to transient faults; TSSOP-14 footprint fits tight spaces between SoC and power delivery components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV9054IDR | Higher 5-MHz GBW and 15-V/µs slew rate; 60-µA per-channel IQ; rail-to-rail I/O; same TSSOP-14 package. | Better suited for higher-speed active filters or fast-settling ADC drivers; less ideal for ultra-low-power always-on monitoring. | Select TLV9054IDR when bandwidth >2 MHz or settling time <1 µs is required; LMV614MTX/NOPB preferred for sub-200-µA total system current. |
| LMV324DTBR2G | Lower 1-MHz GBW; 120-µA per-channel IQ; rail-to-rail output only (not input); SOIC-14 package (larger footprint). | Cost-optimized for non-critical general-purpose use; lacks rail-to-rail input for true single-supply transducer interfacing. | Choose LMV324DTBR2G for price-sensitive designs where input common-mode range beyond rails is unnecessary and SOIC-14 is acceptable. |
Compared with TLV9054IDR and LMV324DTBR2G, LMV614MTX/NOPB uniquely balances 1.4-MHz bandwidth, 100-µA quiescent current, rail-to-rail input/output, and −40°C to +125°C operation in TSSOP-14 - making it optimal for battery-constrained industrial and portable electronics requiring precision and reliability without speed or cost trade-offs.
Availability
LMV614MTX/NOPB is available at Aetrix Electronics and suitable for portable audio pre-amplifiers, battery supply monitoring, and industrial sensor signal conditioning requiring stable component supply across automotive, industrial, and consumer production programs.
Supply support for LMV614MTX/NOPB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader designing analog ICs, embedded processors, and digital signal solutions for industrial, automotive, and communications markets.
The LMV61x family was engineered for low-voltage, low-power general-purpose amplification - targeting portable, battery-operated, and space-constrained systems needing rail-to-rail performance at 1.8 V.
FAQ
What supply voltage range does the LMV614MTX/NOPB support?
The LMV614MTX/NOPB operates from 1.8 V to 5.5 V single supply (or ±0.9 V to ±2.75 V dual supply). It is fully specified and tested at 1.8 V, 2.7 V, and 5 V - ensuring reliable performance across battery discharge curves and mixed-voltage system rails. This makes LMV614MTX/NOPB suitable for direct integration with Li-ion, 3.3-V logic, and legacy 5-V subsystems without external regulators.
Does the LMV614MTX/NOPB have rail-to-rail input capability?
Yes, the LMV614MTX/NOPB features rail-to-rail input with common-mode voltage range extending 200 mV beyond both supply rails (V− − 0.2 V to V+ + 0.2 V at 25°C). This allows direct interfacing with sensors or DACs whose outputs exceed the supply range - a key advantage over amplifiers with limited input range. LMV614MTX/NOPB maintains ≥50 dB CMRR across this extended range, preserving signal integrity.
What is the maximum output swing of the LMV614MTX/NOPB at 1.8-V supply?
At V+ = 1.8 V and V− = 0 V, the LMV614MTX/NOPB delivers an output swing of 1.75 V to 1.77 V (minimum to maximum) with a 2-kΩ load - i.e., within 23–25 mV of the positive rail. Under 600-Ω load, swing is 1.65 V to 1.72 V (within 80–105 mV of rail). This rail-to-rail output behavior is maintained across the full −40°C to +125°C temperature range.
How many operational amplifier channels does the LMV614MTX/NOPB contain?
The LMV614MTX/NOPB integrates four independent, identical operational amplifier channels in a single 14-pin TSSOP package. Each channel has dedicated inverting/noninverting inputs and output pins (pins 1–3, 5–7, 8–10, 12–14), with shared V+ (pin 4) and V− (pin 11) supply connections. There is no internal crosstalk between channels - amp-to-amp isolation exceeds 123 dB.
What is the typical quiescent current per channel for the LMV614MTX/NOPB?
The LMV614MTX/NOPB draws 100 µA typical supply current per channel across 1.8–5.5 V supply range and −40°C to +125°C temperature. Maximum per-channel current is 185 µA at 1.8 V and 25°C. This ultra-low IQ enables four-channel operation at <400 µA total - ideal for always-on battery-powered applications like wearable health monitors or remote environmental sensors.
LMV614MTX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.42V/µs
- Gain Bandwidth Product:
- 1.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 14 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 116µA (x4 Channels)
- Current - Output / Channel:
- 100 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LMV614MTX/NOPB FAQ
1.How can I place an order for LMV614MTX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV614MTX/NOPB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LMV614MTX/NOPB reliable?
The price and inventory of LMV614MTX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV614MTX/NOPB is usually 5 days.
3.What payment methods are accepted for LMV614MTX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV614MTX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV614MTX/NOPB?
LMV614MTX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV614MTX/NOPB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LMV614MTX/NOPB?
For technical support, including LMV614MTX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV614MTX/NOPB requirements.
6.How does Aetrix verify that LMV614MTX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV614MTX/NOPB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LMV614MTX/NOPB meets industry standards.
7.What is the process for return or replacement of LMV614MTX/NOPB?
All LMV614MTX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV614MTX/NOPB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LMV614MTX/NOPB part is unused and in its original packaging.
Return procedure for LMV614MTX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV614MTX/NOPB Tags
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